blue ash

Blue Ash Fraxinus quadrangulata
Family: Oleaceae (Olive)
Branching: Opposite

This ash is rare in Canada. Its twigs are very distinctive as they have four ridges running down the twig, giving it a square look.

The angled twigs of Blue Ash.

Another view of the winter twig

Winter twig of Blue Ash

Lateral bud and leaf scar

Middle-aged bark

Older bark of Blue Ash